Hello,

Yes this now comes more or less out of the box with Docker Networks, so what you need to do is:

• Create two containers:

docker run -d --name web1  -p 8001:80 eboraas/apache-php
docker run -d --name web2  -p 8002:80 eboraas/apache-php

• Important note: it is very important to explicitly specify a name with --name for your containers otherwise I’ve noticed that it would not work with the random names that Docker assigns to your containers.

• Then create a new network:

docker network create myNetwork

• After that connect your containers to the network:

docker network connect myNetwork web1
docker network connect myNetwork web2 

• Check if your containers are part of the new network:

docker network inspect myNetwork

• Then test the connection:

docker exec -ti web1 ping web2

Again it is quite important to explicitly specify names for your containers otherwise this would not work. I figured this out after spending a few hours trying to figure it out.

Hope that this helps!
Regards,
Bobby